RT Journal Article
T1 Three-dimensional linear peeling-ballooning theory in magnetic fusion devices
A1 Weyens, Toon
A1 Sánchez Fernández, Luis Raúl
A1 García Gonzalo, Luis
A1 Loarte, A.
A1 Huijsmans, G.
AB Ideal magnetohydrodynamics theory is extended to fully 3D magnetic configurations to investigate the linear stability of intermediate to high n peeling-ballooning modes, with n the toroidal mode number. These are thought to be important for the behavior of edge localized modes and for the limit of the size of the pedestal that governs the high confinement H-mode. The end point of the derivation is a set of coupled second order ordinary differential equations with appropriate boundary conditions that minimize the perturbed energy and that can be solved to find the growth rate of the perturbations. This theory allows of the evaluation of 3D effects on edge plasma stability in tokamaks such as those associated with the toroidal ripple due to the finite number of toroidal field coils, the application of external 3D fields for elm control, local modification of the magnetic field in the vicinity of ferromagnetic components such as the test blanket modules in ITER, etc.
PB American Institute of Physics (AIP)
SN 1070-664X
YR 2014
FD 2014-04-23
LK https://hdl.handle.net/10016/35895
UL https://hdl.handle.net/10016/35895
LA eng
NO This research was sponsored in part by DGICYT (Dirección General de Investigaciones Científicas y Tecnológicas) of Spain under Project No. ENE2012-38620-C02-02 and also in part by Comunidad de Madrid Project No. S2009/ENE-1679.
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RD 2 may. 2024